Broken binary with lto=fat when static linking on latest Rust 1.59+

[cipriancraciun]

The following simple Rust program fails to correctly read the env::args when built with the following compile arguments:

cat >| ./main.rs << 'EOS'

pub fn main () {
        eprintln!("{:?}", ::std::env::args ());
        eprintln!("{:?}", ::std::env::args_os ());
}

EOS

 ~/.cargo/bin/rustc +stable --version
rustc 1.59.0 (9d1b2106e 2022-02-23)

env \
        -i \
        PATH=/usr/bin \
        TMPDIR=/tmp \
\
~/.cargo/bin/rustc \
        \
        +stable \
        \
        -C lto=fat \
        -C target-feature=+crt-static \
        -C relocation-model=static  \
        -C linker=clang \
        -C link-arg=-fuse-ld=mold \
        \
        -o ./main \
        -- \
        ./main.rs \
#

./main 1 2 3
Args { inner: [] }
ArgsOs { inner: [] }

clang --version
clang version 13.0.1

mold --version
mold 1.1 (compatible with GNU ld)

[rui314]

Thank you for your report. It looks like something is wrong when -C relocation-model=static is given. Investigating...

[rui314]

I think the issue has been fixed in the above patch.